The surface gravity of 21 Comae Berenices (A3p)

Details The surface gravity of 21 Comae Berenices (A3p) The surface gravity of 21 Comae Berenices (A3p)

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...256..166m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 256, no. 1, p. 166-168.

Astronomy and Astrophysics

Astrophysics

1

H Alpha Line, Line Shape, Peculiar Stars, Stellar Gravitation, Stellar Luminosity, Stellar Models

Scientific paper

The H-alpha profile of 21Com (A3p,SrCrEu) has been fitted to synthetic hydrogen profiles to derive the surface gravity of this star. A model of gravity log g = 3.75 +/- 0.25 best reproduces the observed profile for the effective temperature of 21Com. The derived gravity is characteristic of luminosity class IV for the temperature regime considered.

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